Make Every Workout Count, Better health. Faster splits. More me-time. Whatever your goals may be, the Fluid² (9904T); bicycle trainer helps you get the most out of each indoor riding and training ride. The large, precision-balanced flywheel (with patented fan design) on the indoor bike trainer stand lets you easily customize each ride simply by shifting gears, just as you would outside. This design also helps keep your Fluid² bicycle trainer stand working better – and longer. And thanks to our built-to-last manufacturing process, the Fluid² bike trainer stand for indoor riding can help you conquer one goal after the next. So stop waiting and start pedaling with the Saris Fluid2 indoor bicycle trainer exercise stand.